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Priority claimed from DE19732322813external-prioritypatent/DE2322813C3/de
Application filedfiledCritical
Publication of JPS5016527ApublicationCriticalpatent/JPS5016527A/ja
Publication of JPS5544921B2publicationCriticalpatent/JPS5544921B2/ja
G02B13/00—Optical objectives specially designed for the purposes specified below
G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length